code: def test_unpack_no_meta_yaml(tmp_path: Path):
      with tarfile.open(tmp_path / "a.tgz", "w:gz"):
          pass
      with pytest.raises(RuntimeError):
          unpack(str(tmp_path / "a.tgz"), "out")
  
file_path: espnet/test/espnet2/main_funcs/test_pack_funcs.py
imports: import tarfile
  from pathlib import Path
  import pytest
  import yaml
  from espnet2.main_funcs.pack_funcs import find_path_and_change_it_recursive, pack, unpack
label_desc: Use image node_id 4 for calling a global function with example usage: test_unpack_no_meta_yaml(tmp_path) without return types